3rd Arkansas Infantry Regiment (Confederate States)

3rd Arkansas Infantry Regiment
Active1861–1865
DisbandedApril 12, 1865
Country Confederate States
Allegiance Arkansas
Branch Army
TypeRegiment
RoleInfantry
Part ofTexas Brigade
Nickname(s)"Third Arkansas"
FacingsLight blue
Engagements
Commanders
Commanding officers

The 3rd Arkansas Infantry Regiment, commonly known as the "Third Arkansas", was a line infantry formation of the Confederate States Army in the Eastern Theater of the American Civil War.

Mustered into Confederate service in 1861 under Colonel Albert Rust, and later falling under the command of Colonel Van. H. Manning, the Arkansas regiment was part of the Army of Northern Virginia, serving under General Robert E. Lee. The Third Arkansas served for the duration of the war, from the late months of 1861, through to its surrender at Appomattox Court House in 1865.

It was the only Arkansas regiment to serve the entire war in the Eastern Theater, where most of the major American Civil War battles were fought, and the only one from the state to initially sign up for the duration of the war, with all other regiments from the state opting for twelve-month enlistments.